Mailbag: Upgrading the Rear-End in a 1966 Chevy II SS

The car is equipped with an 8.2-inch, 10-bolt rear-end with 28-spline axles and a 3.08 ring and pinion set. I am going to re-use the original ring and pinion but plan to replace the factory open differential. What can you tell me about Eaton’s performance diff?

Additionally, the rest of the components should be replaced too. Ratech’s complete ring and pinion installation kit features all of the accessories you’ll need to rebuild your axle to better-than-new condition. These parts include new pinion bearings, pinion shims, carrier bearings, carrier ships, a crush sleeve, a pinion seal and nut, ring gear bolts, and a cover gasket.